Door holder



June 10,1930. R. s. POTTER I 1,763, 24

DOOR HOLDER Filed Dec. 15. 1927 INVENTOR ATTORNEY "ROBERT s. POTTER, OFGREENWIGH, connnc'rrcur, AssIenonrorHnYALE & TOWNE MANUFACTURING COMPANY, on STAMFORD, connncrrcurf This inventionrelates to a door holder of the typefin which a plurality of friction facesfarebrought together upon the opening of the door so. asto hold-the same in an 5 open position. i i i 1 o Door holders of this type are usually con struct'edso that some change must be made in the arrangement of the holder mechanism.

. 1 doors; My invention obviates the necessity forfthis rearrangement; of the parts, since a right or left hand dOOI f without the slightestfchange or displace Int anyadjustment whatsoever.

so the necessary results with a minimum of 3 0 partsql Inthe drawings Figure anisometric pliedgto a door closer; assembly. Fig.32 is'a 1 View. in sectionof the friction parts show ing the action of the same. Fig. 3 is a view of the uppermost friction disk; Fig.4 is a a view ofmyfrictionl block; Fig. 5 is a view end q I 1; bolt passing through the samei ing sylO indicates an arm which may be pivotallysecured toa door frame 11 while 12 The arm 12 is equipped with a friction disc29 having a friction face 12'. This disc i w 29 has a square bore 13 w c is adapted contain the square bolt 14. A threaded friction sleeve 15 having upper and lower X friction; faces 16 and17 and afsquarebore 18 fits overbolt llandis mounted for axia movement thereon; i a a A friction block 12 having upper and lower friction faces 20 and 21 isthreaded on a the sleeve 15 as shown in Fig. 2. V This fricj tion block is equippedwith the bifurcated to adapt the sameto right hand or left hand my holder will function equally well for of the parts or a While this object has been accomplished, 1 by other patentees, my invention is of a verysimple and compact type; and accomplishes .tively to each other, the rotate with arm'12 and face 12'.) The fricw View of my doorholder showing thesame apofmy frictionsleeve; Fig. 6is view of the position of my door closer arm andthe (Referring more particularly to the drawindicates a second arm which maybe pivotfl 85 ally secured to a door 1a or a door closer l3 secured thereto. These arms are pivotallyj p secured together, this pivotal connection benoon HOLDER Application filed December 15, 1927. Serial No. 240,301.

arm 22 having holes 23 for the retention of a rivet by means of which this friction block issecured to the arm 10. Mounted on the tion members 15 and 2 1 will move therewith since'the same are mounted against rotary movement relatively to the bolt. This will: causethe friction block19 of the arm 10 to rotate relatively to the sleeve 15 and this relative'rotation will cause 19 to ride either up or down on the threads of the sleeve. This relative axial movementof the mem- This upper disc is also equipped with a frictional surface, 26. A nut27 is threaded on. h l pper from o the drawings,

bers 15 and 19 will serve to lengthen the axial distance theyoccupy onthe bolt 14; so as to take up the play existing between the various friction members. Asshown in Fig.

2, this relative movement has caused the upper friction surface 20 of the blockg19 to engage surface 26 of disk2&,while surgagenient with surface 12.; This relationship of the parts willfbe sufficient to hold my invention will operateequally well without any adjustment regardless of the direction of the opening of the door.

face 17 of the sleeve 15 is brought into ena When it is "desired to vary the position at which the door isheld open, it is onlynecthreadedsleeve similarly mounted on said a bolt between said disks, an internally threaded friction block mounted on said sleeve threads and adapted to move longi tudinally relatively to said bolt and sleeve when rotated relatively to the same, means actuated by the opening of the door to rotate said block relatively to the sleeve, and

means for limiting the length of bolt to be occupied by said group of friction members. Signed at Stamford in the county of llairfield and State of Connecticut this 14th day of December A. D. 1927. i

ROBERT S. POTTER. 

